JP5262270B2 - Skin material for vehicle seats - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the changeability of the appearance of a skin material in order to further improve its designability. <P>SOLUTION: In the skin material S(10) of a vehicular seat 2, a hole part 16 formed in the skin material S(10) is made to be able to emit light spontaneously by being provided with a light accumulation material which accumulates light such as sunlight and artificial light. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a skin material for a vehicle seat.

This type of skin material is a member that covers a vehicle seat and constitutes its design surface (for example, a portion that can be viewed by an occupant), and is essentially a member that is required to have high design properties. In particular, recent vehicle seats are favored to have a more varied design, and thus further improve the design of the skin material.
Therefore, Patent Document 1 discloses a technique for improving the design of a seat by forming a plurality of holes (patterns) on the skin material, and is a technology that can also be applied to the skin material of a vehicle seat.
Registered Utility Model No. 30621117

However, simply forming a plurality of hole portions (patterns) in the skin material as in the known art has little change in appearance and lacks the fun as a design of a vehicle seat.
The present invention was created in view of the above points, and the problem to be solved by the present invention is to make the appearance of the skin material more varied in order to further improve the design. It is in.

As means for solving the above problems, the skin material of the first invention is a member that covers a vehicle seat and constitutes a design surface thereof, and is formed with a hole or a recess for improving design properties. .
And since this kind of skin material is desired to further improve the design, in the present invention, the hole portion of the skin material is provided with a phosphorescent material that stores light such as sunlight or artificial light, and emits light spontaneously. Possible configuration. By doing so, the skin material of the vehicle seat exhibits a different appearance, for example, day and night, due to light emission from the hole or recess (afterglow of the phosphorescent material).

Moreover, the skin material of the vehicle seat of the first invention constitutes at least a part of the design surface by leather having a silver surface layer and a fiber layer. Then, a hole (through hole or non-through hole) is formed in the leather, and there is a concern that the surface rigidity of the leather is lowered at the position where the hole is formed (thin part).
Therefore, in the present invention, a colored paint layer is formed by applying a colored paint to the silver surface layer. A hole that narrows stepwise or continuously from the silver surface layer toward the fiber layer is formed in the leather. Then, by providing a resin layer (reinforcing layer) containing a phosphorescent material on the inner surface of the hole, the inner surface of the hole is made to emit light while preventing or reducing the decrease in surface rigidity accompanying the formation of the hole.

According to the first aspect of the present invention, the appearance of the skin material becomes more varied, and the design properties can be further improved. The skin material of the first invention, together with surface rigidity decreases due to hole formation is prevented or reduced, that Teisu appearance a more interesting.

The best mode and reference examples for carrying out the present invention will be described below with reference to FIGS . Or in each figure was, and it illustrates the phosphorescent material contained in the resin layer at the dot.
In FIG. 1, for convenience, only one hole or recess is provided with a reference numeral, and the hole or recess including the resin layer (phosphorescent material) is illustrated with a black circle, and the hole or recess without the resin layer is illustrated with a white circle. This is illustrated in FIG.

The vehicle seat 2 shown in FIG. 1 includes a seat cushion 4, a seat back 6, and a headrest 8, and each of these components is covered with a skin material (4S, 6S, 8S).
A plurality of hole portions (concave portions) are formed in the center portion of the skin material 4S, 6S to improve the design, but considering the design of the vehicle seat 2, these skin materials Further improvement in design properties of 4S and 6S is desired.
Therefore, in each of the examples and reference examples described below, the appearance of the skin materials 4S and 6S is richly changed by a phosphorescent material to be described later, and the design is further improved.
By the way, the above-mentioned skin material 6S is constituted by sewing a plurality of natural leather pieces in a bag shape. Accordingly, in each embodiment, the configuration of each embodiment (a configuration of a hole or a recess that spontaneously emits light exclusively) is taken as an example of a piece (hereinafter simply referred to as natural leather 10) that forms the center portion of the seat back 6. I will state.

[ Reference Example 1]
With reference to FIG. 2, the natural leather 10 of the present reference example includes a resin layer 20 containing a phosphorescent material, a colored coating layer 22, and a plurality of through holes 16 (an example of a hole).
Referring to FIG. 2 (a), this natural leather 10 is a leather having an epidermis (silver surface layer 12) and a dermis (fiber layer 14), such as cow leather, horse leather, pig leather, deer leather, sheep. Examples thereof include animal-based natural leather such as leather, goat leather, kangaroo leather, and insect-based natural leather.

(Resin layer)
And the resin layer 20 is formed by giving the resin composition containing the below-mentioned luminous material to the fiber layer 14 by methods, such as screen printing, spray spraying, application | coating, or an impregnation (refer FIG.2 (b)). ). By forming the resin layer 20 (reinforcing layer) in the fiber layer 14 in this way, the phosphorescent material is mixed in the fiber layer 14 in a dispersed state, and the fiber layer 14 is relatively firmly integrated and is not easily frayed. It becomes.
At this time, it is preferable to apply the resin composition by impregnation because a relatively uniform resin layer 20 can be formed inside the fiber layer 14. For example, referring to FIG. 1, after a fiber layer 14 (triangular broken line portion) of a part of natural leather 10 is impregnated with a resin composition dispersed or dissolved in an appropriate solvent, a means such as heat treatment is performed. The resin layer 20 is formed by curing.

Here, the resin contained in the resin composition only needs to have a property that can be cured by means such as heat treatment, and examples thereof include addition polymerization resins, epoxy-urethane resins, and condensation polymerization resins.
More specifically, examples of the addition polymerization resin include acrylic resin (thermoplastic acrylic resin, thermosetting acrylic resin), vinyl resin, hydrocarbon resin, and rubber. Examples of the epoxy / urethane resin include epoxy resins (glycidyl ether-based, glycidyl ester-based, glycidylamine-based), urethane resins (one-pack type, two-pack type), and polyurea resins. Examples of the condensation polymerization resin include polyester resin, melamine resin, phenol resin, polyamide resin, and ketone resin. One or more resins selected from the group consisting of these resins or derivatives thereof may be used as the resin composition.
The resin composition is typically applied to the fiber layer 14 so that the weight ratio is natural leather: resin = 9: 1 to 6: 4 (preferably natural leather: resin = 7: 3).

(Phosphorescent material)
The phosphorescent material is a compound that can spontaneously emit light by storing light such as sunlight or artificial light, and includes a strontium aluminate-based phosphorescent material, a calcium aluminate-based phosphorescent material, and a sulfide-based phosphorescent material. It can be illustrated.
Among these, the strontium aluminate-based phosphorescent material is excellent in terms of afterglow luminance, and can be suitably used as the phosphorescent material of this reference example . This strontium aluminate-based phosphorescent material is a compound composed of 0.001 to 10 mol% of europium (activator) with respect to strontium aluminate (matrix), preferably 0.001 Contains 10 mol% of co-activator. Examples of the co-activator include lanthanum, cerium, praseodymium, neodymium, samarium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, manganese, tin, and bismuth.

  And since the above-mentioned luminous material is provided with the property which does not generate | occur | produce at the time of light emission, it can be used safely as a structure of the vehicle seat 2 for a passenger | crew to sit down. Moreover, since the phosphorescent material can emit light by storing sunlight (natural light), it is not necessary to separately equip the vehicle seat 2 with an electric lamp (artificial light) or the like, and has an environment-friendly configuration.

And this luminous material is mixed with a resin composition in the range of 1 weight%-10 weight% with respect to the above-mentioned resin. When the mixing ratio of the phosphorescent material is less than 1% by weight, the holes (recesses) tend not to have sufficient afterglow luminance. The mixing ratio of the phosphorescent material may be greater than 10% by weight, but the cost increases in proportion to the increase in the mixing ratio and the reinforcing performance of the resin layer 20 tends to decrease slightly. The mixing ratio of the phosphorescent material is preferably in the range of 3% by weight to 10% by weight with respect to the resin. When the mixing ratio is within this range, the afterglow brightness suitable for light emission at night is reduced to the hole (recessed portion). ).
The phosphorescent material is preferably mixed with the resin composition in the form of powder or particles. For example, by setting the average particle diameter of the phosphorescent material to 10 μm to 100 μm (size capable of retaining the crystal structure of the phosphorescent material), the afterglow luminance inherently possessed by the phosphorescent material can be obtained.

(Colored paint layer)
In this reference example , a colored paint layer 22 is formed by applying a colored paint to the silver surface layer 12 of the natural leather 10 by a technique such as screen printing, spray spraying, application, or impregnation (FIG. 2C). See).
The colored paint is typically a liquid paint having a colorant (pigments and dyes) and a vehicle (coloring agent). A pigment is preferable for coloring the silver surface layer 12. Examples of the pigment include inorganic pigments such as titanium dioxide, calcium carbonate, and carbon black, and organic pigments such as diazo yellow, lake red, and phthalocyanine blue.
The vehicle (coloring material) may be any liquid component that can disperse or dissolve the colorant to be used, such as vegetable oil or mineral oil, hexane, triol, ethyl alcohol, acetone, ethyl acetate, It is configured to contain a solvent such as ethyl ether and diethylene glycol, a resin such as a phenol resin, an alkyd resin, a vinyl resin, a polyamide resin, and an acrylic resin. In addition, you may mix adjuvants, such as a color tone regulator and a tolerance regulator, in a coloring paint.

(Through hole)
Then, after placing the natural leather 10 on a base (not shown), a substantially cylindrical through hole 16 is formed by a laser irradiation mechanism or a punch mechanism (not shown) (see FIG. 2D). At this time, since the fiber layer 14 is relatively firmly integrated by the resin layer 20 in the natural leather 10, it is possible to form a sharp through hole 16 in which fraying or the like does not occur as much as possible.
The natural leather 10 that has been subjected to perforation in this manner is sewn in a bag shape together with other natural leather pieces to form a skin material 6S of the seat back 6. And the skin material 6S is covered on the seat back 6 as a position arrangement | positioning where the formation location of the through-hole 16 covers the seating surface center (refer FIG. 1).
Although detailed description is omitted, a through-hole 16 capable of spontaneously emitting light is also formed in the skin material 4S of the seat cushion 4 by the same method as that for the skin material 6S described above.

As described above, in this reference example , a part of the plurality of through holes 16 formed in the design surface of the vehicle seat 2 (the center portion of the seat back 6 and the seat cushion 4) includes the phosphorescent material and emits light spontaneously. It is a configuration. Specifically, referring to FIG. 1, at night, the through-hole 16 portion forming the resin layer 20 (phosphorescent material) spontaneously emits light so as to form a substantially triangular pattern in front view. For this reason, according to the skin material 6S of the present reference example , the design surface exhibits a different appearance day and night (the appearance of the skin material 6S is rich in change), and the design can be further improved. .
Further, since the colored coating layer 22 is formed on the design surface around the through-hole 16, the through-hole 16 including the resin layer 20 (phosphorescent material) can emit light more clearly (better).
And since the skin material 6S of this reference example formed the resin layer 20 (reinforcement layer) in the fiber layer 14, the surface rigidity fall accompanying formation of the through-hole 16 is prevented or reduced. It can be preferably used.

By the way, the design surface (natural leather 10) of the skin material 6S is a portion that can be seen by the occupant and also a portion that the occupant contacts. For this reason, there is a concern that the phosphorescent material may be peeled off from the natural leather 10 due to rubbing caused by the contact of the passenger. Therefore, if the resin layer 20 is provided on the fiber layer 14 (the back side of the design surface) of the natural leather 10 as in this reference example , contact between the resin layer 20 (phosphorescent material) and the occupant is avoided as much as possible. Separation of the material can be prevented or reduced.
Although the size of the through hole 16 is slightly emphasized in the drawing, it may actually be a diameter of about 0.05 mm to 1.7 mm. If this diameter is set, the occupant hardly touches the inner surface of the through-hole 16, so that the phosphorescent material of the natural leather 10 is retained, and the afterglow luminance suitable for light emission at night is maintained for a long time. It becomes.

[Example 1 ]
Since the natural leather of the present embodiment has almost the same basic configuration as that of Reference Example 1 described above, common structures and the like are denoted by corresponding reference numerals and detailed description thereof is omitted.
In this example, referring to FIG. 3A, after reinforcing the fiber layer 14 with the resin layer 20 containing the phosphorescent material, the fiber layer 14 (design) from the silver surface layer 12 to the natural leather 10 is designed. A substantially conical through-hole 16a having a narrow width continuously from the surface toward the inside of the sheet is provided. Specifically, the through-hole 16a is formed by making the opening radius R2 on the fiber layer 14 side smaller (narrower) than the opening radius R1 on the silver surface layer 12 side by the laser irradiation mechanism.
And since the resin layer 20 (reinforcing layer) containing the phosphorescent material is formed on the inner surface (tapered fiber layer 14) of this through hole 16a, the surface rigidity of the skin material 6S can be more reliably prevented or reduced. Can be reduced. The inner surface (tapered fiber layer 14) of the through hole 16a spontaneously emits light, so that the design surface (natural leather 10) of the skin material 6S has a more interesting appearance. Moreover, since the taper-shaped inner surface of the through hole 16a has a large exposed area of the resin layer 20 on the silver surface layer 12 side, light such as sunlight can be efficiently stored from the silver surface layer 12 side.

  Furthermore, in the modification of the present embodiment, referring to FIG. 3 (b), after reinforcing the fiber layer 14 with the resin layer 20 containing the phosphorescent material, the non-through hole 17 (hole The other part) was formed narrower from the silver surface layer 12 toward the fiber layer 14. If the fiber layer 14 is reinforced in advance with the resin layer 20 in this manner, the non-through hole 17 can be formed in the natural leather 10 without causing fraying or the like in the fiber layer 14 as much as possible. And since the fiber layer 14 containing a phosphorescent material is exposed to the bottom face of the non-through-hole 17, the non-through-hole 17 can be made to light-emit more strongly (refer FIG. 1).

[Example 2 ]
Since the natural leather of the present embodiment has almost the same basic configuration as that of Reference Example 1 described above, common structures and the like are denoted by corresponding reference numerals and detailed description thereof is omitted.
In the present embodiment, referring to FIG. 4A, the natural leather 10 is provided with a tapered through-hole 16 a that continuously narrows from the silver surface layer 12 toward the fiber layer 14. And it is the structure which sticks the resin sheet 30 (other example of a resin layer) containing a luminous material to the inner surface of this through-hole 16a with an adhesive material.
And according to a present Example, a phosphorescent material can be exposed from the whole inner surface of the through-hole 16a, preventing or reducing the surface rigidity of the skin material 6S more steadily by the resin sheet 30.

The adhesive is a resin capable of bonding the resin sheet 30 and the fiber layer 14, and examples thereof include a urethane resin, an acrylic resin, an aminoplast resin, an epoxy resin, a glyoxal resin, and an ethylene urea resin.
The above-described resin sheet 30 is preferably made of a stretchable resin, for example, one or more resins selected from the group consisting of polypropylene (PP), polyethylene terephthalate (PET), and polyethylene (PE). Consists of.

  Furthermore, in a modification of the present embodiment, referring to FIG. 4B, after the resin sheet 30 is stuck and reinforced on the fiber layer 14 side, the tapered through hole 16a is formed. In this configuration, the attaching operation of the resin sheet 30 is relatively easy, and the surface rigidity of the skin material 6S can be prevented or reduced more reliably. This modification is a technique that can be suitably applied when the diameter of the through hole 16a is relatively small (for example, about 0.05 mm to 1.7 mm).

[ Reference Example 2 ]
Since the natural leather of this reference example has substantially the same basic configuration as that of Reference Example 1 described above, common structures and the like are denoted by corresponding reference numerals and detailed description thereof is omitted.
In this reference example , referring to FIG. 5A, the silver surface layer 12 of the natural leather 10 constituting the design surface has a recess 18 formed by embossing or other embossing. Since this concave portion 18 is formed without partial thinning of the natural leather 10, it is natural compared to the above-described through hole 16 and non-through hole 17 (hole portion with partial thinning). The leather 10 has a configuration in which the surface rigidity of the leather 10 is not reduced as much as possible.
5B and 5C, the resin layer 20 containing a phosphorescent material is provided on the surface of the silver surface layer 12 of the natural leather 10 by spraying the resin composition with, for example, a spray spraying device 40. The colored coating layer 22 is provided on the resin layer 20 around the recess 18 by the coating roller 42. By doing so, the concave portion 18 where the resin layer 20 (phosphorescent material) is exposed can be made to emit light more clearly (better) (see FIG. 1).

Skin member of the seat 2 of the present embodiment is not limited to the embodiments or the like described above, can take various other embodiments.
(1) In the reference example 1 , the natural leather 10 in which the through-hole 16 is formed is illustrated, but a configuration in which the non-through-hole 17 (substantially conical or substantially cylindrical) may be formed. Moreover, although the reference example 1 demonstrated the example which forms the resin layer 20 in the fiber layer 14, you may comprise using the resin sheet 30. FIG.
(2) Moreover, in Example 1 and Example 2 , the substantially conical hole part (the through-hole 16a, the non-through-hole 17) whose diameter dimension becomes narrow continuously was illustrated. In contrast to this, a configuration (for example, a stepped shape) in which the diameter of the hole is narrowed in steps may be used.
Moreover, in Example 1 and Example 2 , although the example (conical hole part) by which the perimeter of the hole part was made into a taper shape was demonstrated, while inner surface part of a hole part is formed in a taper shape, other The part may be formed in a straight line shape (cylindrical shape). Further, the tapered inner surface of the hole may be a curved shape such as a concave curved surface or a convex curved surface in addition to the inclined shape as in this embodiment.
(3 )
(4) In the reference example 2 , the example in which the substantially cylindrical recess 18 is formed has been described. However, the recess may be tapered. In Reference Example 2 , a resin sheet may be attached to the inner surface of the recess 18. Further, the recess may be a linear recess in addition to a simple recess.

(5) In each embodiment, circular holes or recesses are illustrated in front view, but the shape of these holes or recesses can be selected as appropriate. Various shapes such as a circular shape, a polygonal shape such as a triangle or a quadrangle, and a star shape or a character can be taken. Moreover, it is good also as a structure which provides only any one of a through-hole, a non-through-hole, and a recessed part in a skin material, and is good also as a structure which provides these simultaneously.
(6) The technology of each embodiment is applicable to any leather that has at least the fiber layer 14, and is applied to, for example, artificial leather (the leather in which the silver layer 12 and the fiber layer 14 are made of resin). can do.

(7) Moreover, in each Example, the structure which mixes a phosphorescent material into the resin layer 20 (resin sheet | seat 30) as an example of "the structure where the hole or recessed part of a skin material is equipped with a phosphorescent material and can emit light spontaneously" (Configuration for suppressing reduction in surface rigidity of skin material) has been described. As another example of the above-described configuration, for example, in the process of manufacturing artificial leather, a configuration in which a phosphorescent material is mixed into a molten resin (a configuration in which a fiber layer or a silver surface layer itself includes a phosphorescent material) can be employed.
(8) In each embodiment, an example in which a plurality of holes or recesses emit light in a triangular shape (pattern) has been described, but the pattern is not particularly limited.
In the present embodiment, an example in which part of the plurality of through-holes 16 (patterns) emits light spontaneously (an example in which design properties are further improved) has been described. Unlike this, all the holes or recesses formed in the skin material 6S may be configured to emit light.
Moreover, it is good also as a structure which forms a several hole part or recessed part in the skin material 6S whole surface, and is good also as a structure which forms a single hole part or recessed part.
In addition to the phosphorescent agent, a color material or a fluorescent agent may be added to the resin layer 20. If it carries out like this, the improvement of the design property of a skin material can be aimed at.

(9) Moreover, in each Example, the example (Example which comprises all the skin material with the natural leather 10) which sewn the piece of the some natural leather 10 in the bag shape and made it the skin material 6S was demonstrated. Unlike this, a part of the skin material 6S may be composed of the natural leather 10 and the other part may be composed of another material (for example, woven fabric or artificial leather).
Moreover, in each Example, the skin material 6S of the seat back 6 was illustrated and the formation example of the hole or the recessed part was demonstrated. The technology of the present embodiment is a technology that can be applied to the skin material 4S of the seat cushion 4, the skin material 8S of the headrest 8, the various members constituting the vehicle seat 2, and their accessories.
Moreover, in each Example, although the example which provides a hole or a recessed part exclusively in the passenger | crew's seating surface (design surface) was demonstrated, the hole or recessed part which can emit light spontaneously was provided in the back surface or side surface of the vehicle seat. Also good.

It is a front view of a vehicle seat. (A)-(d) is a longitudinal cross-sectional view of the skin material regarding the reference example 1, respectively. (A) is a longitudinal cross-sectional view of the skin material which concerns on Example 1 , (b) is a longitudinal cross-sectional view of a modification. (A) is a longitudinal cross-sectional view of the skin material which concerns on Example 2 , (b) is a longitudinal cross-sectional view of a modification. (A)-(c) is a longitudinal cross-sectional view of the skin material regarding the reference example 2 , respectively.

2 Vehicle Seat 4 Seat Cushion 6 Seat Back 8 Headrest 10 Natural Leather 12 Silver Surface Layer 14 Fiber Layer 16 Through Hole 17 Non-Through Hole 18 Recess 20 Resin Layer 22 Paint Layer 30 Resin Sheet 40 Spray Spray Device 42 Paint Roller S Skin Material

Claims (1)

In the skin material of the vehicle seat that covers the vehicle seat and constitutes the design surface,
The hole of the formed skin material are spontaneously emitting configurable light such as sunlight or artificial light includes a phosphorescent material for phosphorescent,
The skin material comprises at least a part of the design surface by leather comprising a silver surface layer and a fiber layer,
A colored paint layer is formed by applying a colored paint to the silver surface layer,
A resin layer containing the phosphorescent material on the inner surface of the hole while forming the hole that becomes narrower stepwise or continuously from the silver surface layer toward the fiber layer with respect to the leather. A vehicle seat skin material.

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